Maggie Grace may earn the award for the best ex-boyfriend prank ever.

On Thursday’s episode of Conan, Grace admitted to using the skills of her Taken co-star, Liam Neeson, to frighten her ex.

The skill Neeson used is that of the distinct cold threat voice he is so very, very good at.

When Maggie Grace’s ex-boyfriend treated her with disrespect, he was made to regret it.

Turns out, Liam Neeson feels just as protective of Maggie Grace in real life as he does in their movies.

She told Conan, “I was a little bit heartbroken and he was kind of a hot mess.”

She continued, “I was telling Liam about it because he always asks about my love life, or lack thereof. And he was like ‘This just can’t be. We have to set this kid straight.’ ”

He began the call with, “We’ve never met, and if you play your cards right, we never will.”

And it just got better from there.

“You’ve made two mistakes. Your first mistake was dating out of your league. Your second mistake, well, let’s just say any more mistakes and I’ll break your other arm. Slowly.”

He then added, because he had to, “I don’t need to say it, but I have a particular set of skills and I don’t want to waste it on you.”

Maggie Grace is one lucky girl! He should sell these kinds of phone calls to the highest bidder. He could make a ton of cash and would be an asset to the women who are brave enough to date in this world.

I could think of a few exes I would aim a Liam Neeson Taken-style call at. Can you?